Water appeared in Mastiff and took a minute to reach overflow with half-foot surging. At this point Feather turned on, and Mastiff went flat. A short while later Rust turned on to 2-3 inches. Three minutes into Feather, water levels in Mastiff started dropping, and Feather quit just after. During the hot period, Giant started having cone-wide surging to half the height of the cone, but not nearly with heavy enough water to trigger an eruption.